Watkins VY, O’Donnell CM, Perez M, et al. - In order to test the hypothesis that higher levels of physical activity across different lifestyle domains in pregnancy is linked with a shorter duration of labor, researchers conducted a secondary analysis of a prospective cohort study in which the Kaiser Physical Activity Survey (KPAS) was administered to patients with singleton pregnancies without a major fetal anomaly in each trimester. Design of the KPAS particularly involved determination of various types of physical activity in women and included four summative indexes: housework/caregiving, active living habits, sports, and occupation. This analysis was performed including 811 patients with complete KPAS data in the third trimester. Among these women, 203 patients (25%) had higher levels of physical activity in pregnancy. Data revealed a shorter duration of active labor among patients that are more physically active in pregnancy.